Determination of aspoxicillin in broncho-alveolar lavage fluid by high-performance liquid chromatography with photolysis and electrochemical detection.

T Yamazaki, T Ishikawa, H Nakai, M Miyai, T Tsubota, K Asano

Index: J. Chromatogr. A. 615(1) , 180-5, (1993)

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Abstract

A determination method for the penicillin antibiotic aspoxicillin in broncho-alveolar lavage fluid has been developed, involving high-performance liquid chromatography and post-column photolysis. The method enabled the determination of aspoxicillin at concentrations below 100 ng/ml, with a linear calibration curve at concentrations of 1-1000 ng/ml for 100 microliters of lavage fluid. The detection limit was 1 ng/ml at a signal-to-noise ratio of 3:1.

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